DHCP Server is not passing out DHCP Leases

I can't seem to figure out why DHCP server is not passing out DHCP lease a client?
Also I can't seem to figure out why NVI0 interface is UP? I have setup another box similarly and NVI0 is down on that and the DHCP server is working fine on that too. Strange!
I am working on CISCO 881 VPN Router...Please have a look at it and let me know. Thanks
Here is the configuration in the box...
sh run
Building configuration...
Current configuration : 6543 bytes
! Last configuration change at 17:09:54 CST Fri Sep 14 2012 by XXXXX
version 15.0
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname XXXXX
boot-start-marker
boot-end-marker
logging buffered 51200 warnings
aaa new-model
aaa authentication login default local
aaa authentication login vpn_xauth_ml_1 local
aaa authentication login sslvpn local
aaa authorization network vpn_group_ml_1 local
aaa session-id common
memory-size iomem 10
clock timezone CSTime -6
clock summer-time CST recurring
crypto pki trustpoint TP-self-signed-3079619067
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-3079619067
revocation-check none
rsakeypair TP-self-signed-3079619067
crypto pki certificate chain TP-self-signed-3079619067
certificate self-signed 01
30820252 308201BB A0030201 02020101 300D0609 2A864886 F70D0101 04050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 33303739 36313930 3637301E 170D3132 30393134 31393231
32375A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 30373936
31393036 3730819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
8100993C D622004B F3AEA1E5 81106C28 36EC52D0 5435ABC3 8912095F 3641168A
B67D97AF AEB43CF3 00A00EB5 702FA355 9F58EBEF F42294DC 0E32CF40 E17D372A
3BC36401 55EDBA5C 910B7A51 89D709A8 7EAB3FF0 E4C99D34 CBE3F316 069C0E16
BC284055 35E3D762 463DABF6 852C4E7A D2EF45A4 21F08689 4DF17870 9E2A6C27
1BFB0203 010001A3 7A307830 0F060355 1D130101 FF040530 030101FF 30250603
551D1104 1E301C82 1A506F70 6C617276 696C6C65 2E796F75 72646F6D 61696E2E
636F6D30 1F060355 1D230418 30168014 64EA4CAE 2029E4C2 702584C6 B5732464
5C9DA38A 301D0603 551D0E04 16041464 EA4CAE20 29E4C270 2584C6B5 7324645C
9DA38A30 0D06092A 864886F7 0D010104 05000381 81006C27 96E06B83 04DBDA81
EEB0AF35 84ED370E A8C9694E F9B9326D 69CB1043 9C396D7B 760D252F 4881926D
878E434F 9AFC3E6D A5BF43F2 E619D6EC F45C039A 5FFB478F A99F7EE5 274E37D5
11976FDE 823FD1A9 700203E5 67A329B3 F4CF45F0 245757C8 E2349276 B13414D1
017616FA 38A40BA8 42545AC5 C7676D21 29E4F491 CADB
        quit
ip source-route
ip dhcp excluded-address 10.10.10.1
ip dhcp excluded-address 192.168.1.1 192.168.100.101
ip dhcp excluded-address 192.168.1.254
ip dhcp pool ccp-pool
   import all
   network 10.10.10.0 255.255.255.248
   default-router 10.10.10.1
   lease 0 2
ip dhcp pool Internal_Network
   network 192.168.1.0 255.255.255.0
   dns-server 192.168.100.254
   default-router 192.168.1.254
ip cef
ip domain name yourdomain.com
ip name-server 192.168.100.254
no ipv6 cef
license udi pid CISCO881-K9 sn FTX1604828T
username XXXXX privilege 15 secret 5 $1$QEcR$96cmvs/h/.05G6BnorcWG/
username XXXXX secret 5 $1$PQQ1$3.Vin0i/2uZ/KD0xEJ8GC.
crypto isakmp policy 1
encr 3des
authentication pre-share
group 2
crypto isakmp policy 2
encr 3des
hash md5
authentication pre-share
group 2
crypto isakmp client configuration group YYYYYYY
key XXXXX_XXXXX_XXXXX
pool VPN-Pool
acl VPN-Access-List
crypto isakmp profile vpn-isakmp-profile-1
   match identity group YYYYYYY
   client authentication list vpn_xauth_ml_1
   isakmp authorization list vpn_group_ml_1
   client configuration address respond
   virtual-template 2
crypto ipsec transform-set encrypt-method-1 esp-3des esp-sha-hmac
crypto ipsec profile VPN-Profile-1
set transform-set encrypt-method-1
interface FastEthernet0
interface FastEthernet1
interface FastEthernet2
interface FastEthernet3
interface FastEthernet4
description WAN_INTERFACE
ip address 192.168.100.3 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
interface Virtual-Template2 type tunnel
ip unnumbered FastEthernet0
tunnel mode ipsec ipv4
tunnel protection ipsec profile VPN-Profile-1
interface Vlan1
description VLAN1_INTERFACE
ip address 192.168.1.254 255.255.255.0
no ip redirects
no ip unreachables
ip nat inside
ip virtual-reassembly
ip tcp adjust-mss 1452
ip local pool VPN-Pool 192.168.1.151 192.168.1.200
ip forward-protocol nd
ip http server
ip http access-class 23
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 100 interface FastEthernet4 overload
ip nat inside source static tcp 192.168.1.100 21 192.168.100.3 21 extendable
ip nat inside source static tcp 192.168.1.100 80 192.168.100.3 80 extendable
ip route 0.0.0.0 0.0.0.0 192.168.100.254
ip access-list extended VPN-Access-List
permit ip 192.168.1.0 0.0.0.255 any
permit tcp host A.B.C.D host 192.168.1.100 eq ftp
permit tcp host A1.B1.C1.D1 host 192.168.1.100 eq ftp
permit tcp host A2.B2.C2.D2 host 192.168.1.100 eq ftp
permit tcp 192.168.1.0 0.0.0.255 host 192.168.1.100 eq ftp
permit tcp host A3.B3.C3.D3 host 192.168.1.100 eq ftp
permit tcp any host 192.168.1.100 eq XXX
access-list 23 permit 10.10.10.0 0.0.0.7
access-list 23 permit 192.168.1.0 0.0.0.255
access-list 100 permit ip 192.168.1.0 0.0.0.255 any
no cdp run
control-plane
banner exec ^C
% Password expiration warning.
Cisco Configuration Professional (Cisco CP) is installed on this device
and it provides the default username "cisco" for one-time use. If you have
already used the username "cisco" to login to the router and your IOS image
supports the "one-time" user option, then this username has already expired.
You will not be able to login to the router with this username after you exit
this session.
It is strongly suggested that you create a new username with a privilege level
of 15 using the following command.
username <myuser> privilege 15 secret 0 <mypassword>
Replace <myuser> and <mypassword> with the username and password you
want to use.
^C
banner motd ^C XXXXX-XXXXX VPN Router ^C
line con 0
exec-timeout 30 0
logging synchronous
no modem enable
line aux 0
line vty 0 4
access-class 23 in
privilege level 15
password 7 124A50424A5E5550
transport input telnet ssh
scheduler max-task-time 5000
end

Hi Jennifer,
I have gotten it resolved. Per your suggestion, I have turned on debug ip dhcp events and found that POOL EMPTY message. After little research, I found out that I have made a mistake in my excluded-address range.
I have had it as
ip dhcp excluded-address 192.168.1.1 192.168.100.101
It should have been
ip dhcp excluded-address 192.168.1.1 192.168.1.101.
It was a typo.
Thank you for the suggestion.
Srini

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Hi,
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http://blogs.technet.com/b/teamdhcp/archive/2009/02/18/migration-of-dhcp-server-from-windows-server-2003-to-windows-server-2008.aspx
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DHCP server does not assign IP addresses SG500 firmware 1.3.5

good day collegues
has any of you come across the following issue:
my switch (after upgrading to the newest firmware 1.3.5) does not assign IP addresses to some of the hosts.
after a couple of hours I managed (do not even how) to force my switch to assign IP addresses only to some of the hosts.
still some of them cannot get the IP address and remain with "funny" IP address like i.e. 169.254.100.100
additional info
1. if I boot my switch with the previous version of firmware (1.3.0.6) everything is OK. all my hosts get correct IP addresess
2. the hosts which do not get IP address were perviously entered in stat host table - now removed, ARP cleared, etc, everything many many times rebooted.
I ran out of ideas, could you pleae give me some hints ?
the config below:
config-file-header
SG500
v1.3.5.58 / R750_NIK_1_35_647_358
CLI v1.0
set system mode router queues-mode 4
file SSD indicator encrypted
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end zzz
no spanning-tree
vlan database
vlan 11,13-14
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
no ip dhcp snooping verify
ip dhcp snooping information option allowed-untrusted
ip dhcp snooping vlan 11
ip dhcp snooping vlan 13
ip dhcp snooping vlan 14
ip arp inspection logging interval infinite
green-ethernet energy-detect
no eee enable
arp timeout 1
ip dhcp server
ip dhcp pool host q409
address 10.10.11.2 255.255.255.0 client-identifier 01:00:08:9b:ac:8f:92
default-router 10.10.11.254
dns-server 10.10.10.1
exit
ip dhcp pool host PCH-100
address 10.10.11.10 255.255.255.0 client-identifier 01:00:06:dc:41:ef:ef
default-router 10.10.11.254
dns-server 10.10.10.1
exit
ip dhcp pool host q209
address 10.10.13.3 255.255.255.0 client-identifier 01:00:08:9b:ac:72:ba
client-name q209
default-router 10.10.13.254
dns-server 8.8.8.8
exit
exit
ip dhcp pool network HOME
address low 10.10.11.1 high 10.10.11.254 255.255.255.0
lease infinite
default-router 10.10.11.254
dns-server 10.10.10.1
exit
ip dhcp pool network GUESTS
address low 10.10.14.1 high 10.10.14.254 255.255.255.0
lease infinite
netbios-node-type b-node
default-router 10.10.14.254
dns-server 10.10.10.1 62.233.233.233
exit
ip dhcp relay address 10.10.10.1
ip dhcp relay address 10.10.11.254
ip dhcp relay address 10.10.13.254
ip dhcp relay address 10.10.14.254
no boot host auto-config
no qos
qos advanced-mode trust dscp
qos wrr-queue wrtd
exit
hostname SG500
line telnet
exec-timeout 0
exit
logging buffered debugging
no logging file
aaa authentication login Telnet local
aaa authentication enable Telnet enable
aaa authentication dot1x default none
line telnet
login authentication Telnet
enable authentication Telnet
password 999 encrypted
exit
no passwords complexity enable
passwords aging 0
username 999 password encrypted 999 privilege 15
ip http timeout-policy 0 http-only
clock timezone " " 1
clock summer-time web recurring eu
clock source sntp
clock source browser
sntp unicast client enable
clock dhcp timezone
ip domain name 999
ip name-server 10.10.10.1 62.233.233.233 8.8.8.8
ip host 999 10.10.13.3
ip telnet server
no service mirror-configuration
no security-suite deny syn-fin
security-suite syn protection mode disabled
interface vlan 1
ip address 10.10.10.254 255.255.255.0
no ip address dhcp
interface vlan 11
name HOME
ip address 10.10.11.254 255.255.255.0
ip dhcp relay enable
interface vlan 13
name DMZ
ip address 10.10.13.254 255.255.255.0
ip dhcp relay enable
interface vlan 14
name GUESTS
ip address 10.10.14.254 255.255.255.0
ip dhcp relay enable
interface gigabitethernet1/10
description "(99) QNAP 409"
switchport trunk native vlan 11
exit
macro auto disabled
macro auto processing type host enabled
macro auto processing type ip_phone disabled
macro auto processing type ip_phone_desktop disabled
macro auto processing type router enabled
mac address-table aging-time 10
ip default-gateway 10.10.10.1
snmp-server set 999 permit

Hi Andbor, please make a backup config of your file, factory reset the switch.
After this, manually configure a DHCP scope without any other configuration.
Just something simple like this
ip dhcp pool network GUESTS
address low 10.10.14.1 high 10.10.14.254 255.255.255.0
lease infinite
netbios-node-type b-node
default-router 10.10.14.254
dns-server 10.10.10.1 62.233.233.233
Verify your machine receive IP address with no other configuration.
In some ways, I'm afraid some of your connections black listed due to the arp inspection.
-Tom
Please mark answered for helpful posts

DHCP Server does not work after Exporting and Importing Using Netsh Command

Hello Friends :
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netsh dhcp server import command , the command completed successfully and i can see all of the scopes without any problems and errors , i have authorized the new server without any problem , all scopes are activated without any problem so i
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2- I used Rogue Checker tool in client computers they see authorized server without any problems
3- The same tool in workgroup only shows srv-1 as the DHCP server and does not see other DHCP servers
4- Bindings are OK and DHCP servers only have one NIC installed on them
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MIMO

Are the clients on another network so you need to configure a DHCP relay agent?
If you load up perfmon on the dhcp server and remove all counters and then add DHCP counters. Do you see any dhcprequests when you reboot your dhcp clients? This will determine if your server actually receives any dhcp requests.
Have you check event viewer for any warnings or errors?
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Regards Per-Torben Sørensen http://pertorben.wordpress.com/

SG500 - DHCP server does not assign predefined static IP addresses to hosts

hi guys
I upgraded my SG500 switch firmware to 1.3.0.59, since there is a new functionality DHCP server v.4
well I must say I came accross the issue I cannot solve. DHCP server assign dynamic address - no hassles.
troubles start with static IP hosts.
I defined a couple of hosts with static address within the correct subnet. I tried with hardware address and client identifiers. no luck. my switch does not assign the IP address I assigned to the suitable mac address. to define it I use both CLI & Web.
no of them works. any idea ?
below the cut from my config:
ip dhcp pool host HP-Ellite
address 10.10.11.7 255.255.255.0 client-identifier 01:d8:d3:85:cf:09:72
client-name HP-Ellite
default-router 10.10.11.1
exit
ip dhcp pool host VAIO-Z
address 10.10.14.108 255.255.255.0 hardware-address 54:53:ed:1c:a1:46
default-router 10.10.14.1
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Tom, thnkas for a quick reply...
look, usually it is pretty easy to manage an issue with so precise instructions. but this particular time it is not.
as I understood the "dhcp option 61" is nothing more than "00" which go before pure hardware address.
so, coming back to my example from the first post
with this configuration, my switch assigns 169.254.110.130 255.255.0.0 address
ip dhcp pool host HP-Ellite
address 10.10.11.112 255.255.255.0 client-identifier 01:d8:d3:85:cf:09:72
client-name HP-Ellite
default-router 10.10.11.1
exit
with that configuration, my switch assigns 10.10.11.11 255.255.255.0 address
ip dhcp pool host HP-Ellite
address 10.10.11.112 255.255.255.0 client-identifier 00:d8:d3:85:cf:09:72
client-name HP-Ellite
default-router 10.10.11.1
exit
otherwords "00" does not work as explained (unless I misunderstood the meaing of dhcp option 61). my switch assigns first available dynamic IP address. atlhough the arp table is cleared, dynamic address table is cleared as well. swtich is rebooted, host is rebooted
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Window DHCP Server is not allocting IP to Voice Vlan

Hi,
I HAVE 3560 Switch, Over that two vlan configure Data & Voice respectively. Voice id Vlan 1 and Data Id Vlan 2.Routing is done on this switch and work as L3
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Over both interface IP Helper is configured and pointing to DHCP Server.
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Both Vlan are in different subnet and having / 24.
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Hi,
Checked all configuration in network,apply packet tracer and found DHCP not responding on DHCP Req.
Replace DHCP server and now working fine. :)

Time Capsule not passing wifi dhcp requests on the b/g network

Here's a weird one. Got two 1GB Time Capsules setup in bridge/extend mode. The Win2003 server is serving up DHCP on capsule 1 and I have wifi devices on capsule 2. Both laptops are using the N wifi spec and are getting an IP address from the Win2003 dhcp server. However, the iPhone is on the b/g network and it cannot get a dhcp request. I haven't tried the b/g network on capsule 1 yet but will. Has anyone seen this behaviour before? Would be annoying if I have to setup a 2nd dhcp server on the capsule 2 system. Essentially one capsule is in my basement and the other in my office upstairs. Any ideas?
Thanks, Joe

The reason you see conflicting conclusions is because we have to speculate about a lot of the details since Apple has not yet posted detailed specs, a user manual, or application tips.
Most of us are assuming the the wireless networking features of the Time Capsule will be similar if not identical to the existing Airport Extreme N base station. If that assumption is correct, your questions would be answered as follows:
1. yes, the TC could be used as an access point. It would have to be configured as a remote base station in a wireless distribution system (WDS).
2. and 3. yes, other clients on the network would be able to access the TC hard drive and printer
4. you could set things up the other way around - TC as the base station, and the older Airport Extreme as the remote base station.
5. for 802.11g connections, the older base station and its external antenna should give the older base station better range than the TC since power output for both models at the 802.11g standard should be similar.

SharePoint Foundation 2013 installed on Windows Server 2012 not sending out email notification

I have a server where i installed SP Foundation 2013 on top of Windows Server 2012. I have configured the SMTP as well as the outgoing SMTP in Central Administration
of SharePoint. When i create an alert on a document library, its did not sent any email notification on the changes made to the document in the document library. So, i created a workflow to send out email using SPD2013. The workflow run, but it cannot sent
out email with error saying that outgoing email is not configured correctly. I have checked with another server which i installed SP foundation 2013 on top of Windows Server 2008 R2 - its sending out email just fine using same configuration and outgoing SMTP.
I need help to resolve this issue or at least the cause of the problem.
Any help is greatly appreciated.

Try below:
http://social.technet.microsoft.com/wiki/contents/articles/13771.troubleshooting-steps-for-sharepoint-alert-email-does-not-go-out.aspx
Go to Central Admin ---->Operations----->outgoing email settings and verify that SMTP server is mentioned correctly
2) Test the connectivity with the SMTP server.
In order to do that follow these steps:
Open cmd
telnet <SMTP server name> 25 ( We connect smtp server to the port 25)
you should see a response like this 220 <servername> Microsoft ESMTP MAIL Service, Version: 6.0.3790.3959 ready at date and time
Beware that different servers will come up with different settings but you will get something
If you dont get anything then there could be 2 possible reasons, either port 25 is blocked or
the smtp server is not responding.
For testing response from your server
For testing response say ehlo to it.
Type :
ehlo <servername>
output:
250 <servername> Hello [IP Address]
Now a test mail can be sent from that SharePoint server.
Now we need to enter the From address of the mail.
Type :
mail from: [email protected]
output:
250 2.1.0 [email protected]….Sender OK
It's time to enter the recepient email address.
Type : rcpt to: [email protected]
output:
250 2.1.5 [email protected]
Now we are left with the data of the email. i.e. subject and body.
Type : data
output:
354 Start mail input; end with <CRLF>.<CRLF>
Type:
subject: this is a test mail
Hi
This is test mail body
I am testing SMTP server.
Hit Enter, then . and then Enter.
output:
250 2.6.0 <<servername>C8wSA00000006@<servername>> Queued mail for delivery
Type: quit
output:
221 2.0.0 <servername> Service closing transmission channe
3) Check alerts are enabled for your web application
verify if the windows timer service is running or not.
Run this stsadm command to check that
Stsadm.exe -o getproperty -url http://SharePoint-web-App-URL -pn alerts-enabled
This should return <Property Exist="Yes" Value="yes" />
If you don’t get this, Enable alerts by:
stsadm.exe -o setproperty -pn alerts-enabled -pv "true" -url http://SharePoint-web-App-URL
If its already enabled, try turn off and turn on it back.
4) Check the Timer job and Properties
Go to
MOSS 2007: Central Administration > Operations > Timer Job Definitions (under Global Configuration)
In SharePoint 2010: Central Administration > Monitoring > Review Job Definitions
Check whether the "Immediate Alerts" job is enabled for your web application. check these properties:
job-immediate-alerts
job-daily-alerts
job-weekly-alerts
stsadm.exe -o getproperty -url "http://Your-SharePoint-web-App-URL" -pn job-immediate-alerts
The expected output is:
<Property Exist="Yes" Value="every 5 minutes between 0 and 59"/>.
If you don’t get this, run the following command to set its value.
stsadm.exe -o setproperty -pn job-immediate-alerts -pv “every 5 minutes between 0 and 59" -url http://Your-SharePoint-web-App-URL
5) Check whether the account is subscribed for alerts and it has a valid email account. This should be the first thing to check if the problem persists for some users not for all.
6) Then check if at all those users have at least read permission for the list. Because the first mail should go out for every user without security validation but the next ones won't be delivered unless the user has at least read
permission.
7) If it is happening for one user, can also try to delete and re add the user in the site.
8) Most importantly , you should try this one.
Run this SQL query to the content db < Select * from Timerlock>
This will give you the name of the server which is locking the content database and since when.
In order to get rid of that lock
Go to that server which is locking the content db and then restart the windows timer service.
within some time it should release the lock from content db, if not then at the most stop the timer job for some time
Once the lock will be released then try to send some alerts
You will surely get the email alert.
I found this is the most probable reason for alert not working most of the time. We should start troubleshooting with above steps before coming to this step for any alert email issue but from step 1 to step 7 are best for new environments or new servers.
If the issue is like this ,alert was working before and suddenly stopped working without any environmental change then above conditions in step 1-7 should be ideally fine.
Even after this if it is not working, then you can try these few more steps too
9) Try re-registering the alert template:
stsadm -o updatealerttemplates -url http://Your-SharePoint-Web-App-URL -f "c:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\XML\alerttemplates.xml" -LCID 1033
10) Try to clear the configuration cache
If this helped you resolve your issue, please mark it Answered

DHCP not handing out IP leases to non-domain members

Recently gotten DHCP working, server gives out IP address for domain computers only, non-domain computers do not get a lease and if I manually assign an IP and the device will gain network and internet access. I used the wizard to create the DHCP IP range
but have not done much beyond that. I have setup DHCP servers using Linux, my first go around with Windows. Any further information you may need please let me know.
Thanks.

Alright here we go, took some digging but found the solution for all issues.
netsh int ip reset
netsh winsock reset
Just as further step I restarted DHCP on the server, one more time, then restarted the network interface on my test laptop, I was given an IP address from the server and could browse the network\internet. This morning I checked Address Lease's and now
I see ten address have been leased for RRAS and all devices I have ran the above command on are pulling an address. So the solution to my problem, disable filters for allowed devices in DHCP manager, increase the range or block of IP address to be leased and
finally rebuild\reset winsock and ip stack on domain devices.
Hope this helps someone else in the future.
Cheers!

Yosemite DHCP Server does not die !

I run a small office where the MacOSX (Yosemite) server does mail, dns, etc. but not DHCP - the addresses are handed and managed by the router, a very good and sophisticated one (Miktrotik).
It all worked fine until at some point my partner by mistake enabled the DHCP service on the OS X Server. Shortly he disabled it again (turned it off in the admin application). However even though it shows to be "off" and "disabled", the **** thing keeps answering DHCP requests and giving out addresses.
Checking the logs I can clearly see bootpd is answering requests - so I killed it. The server resucitated it and kept answering requests.
I've tried restarting, turning the service on and off again, everything to no avail.
How could I disable it for good?

You could briefly enable it, then edit the DHCP settings to disable the network interface it is listening on and save that setting, then delete the zone and again save it, and then disable it again. It should then have no settings to give out even if still running.
I presume you have tried rebooting the server?
You could also try the following in Terminal.app
sudo /bin/launchctl unload -w /System/Library/LaunchDaemons/bootps.plist
You could also check that the /System/Library/LaunchDaemons/bootps.plist file contains a value for the Disabled key of true, i.e. yes it is disabled.

My Tcp/ip multi-client server is not passing the data string into the flatten to string vi

I am using labview Multi-connection cleint and server to build my own multi-client server connection.
The problem i am having is that the data does not get through the flatten to string vi. Would anyone be kind enough to tell me why is that happening? and what I do to fix it.
Attached code . My goal is to send data to the client via tcp/ip and use the data to perform certain task.
Thanks a whole lot
Attachments:
multiconnection-server.vi ‏39 KB
multiconnection-client.vi ‏21 KB

Instead, I decided to upload the code and recent mods I have made to it .
see attached
Attachments:
multiconnection-clienttest.vi ‏43 KB
multiconnection-servertest.vi ‏21 KB

Out of available IP addresses on one DHCP server, will other DHCP servers field the request?

I have three WinServer 2012 R2 domain controllers that also act as DNS and DHCP servers.
I have a guest wireless network that has its own subnect, 10.121.176.0/20
We have our DHCP scopes split this way across the three domain controllers with a DHCP lease time of 1 day
Domain controller 1, 10.121.176.11 - 10.121.181.255 for a total of 1,525 addresses
Domain controller 2, 10.121.182.0 - 10.121.186.255 for a total of 1,280 addresses
Domain controller 3, 10.121.187.0 - 10.121.191.254 for a total of 1,279 addresses
This gives us a total of 4,084 addresses to hand out on our guest wireless network which is plenty. I just looked at each servers stats and this is what I see
Domain controller 1 - 717 addresses in use, 808 available
Domain controller 2 - 900 addresses in use, 380 available
Domain controller 3 - 1280 address in use, 0 available
On domain controller 3 I am seeing lots of DHCP events
Event ID 1063 - There are no IP addresses available for lease in the scope or superscope "GuestWireless-176
Event ID 20287 - DHCP client request from 28E14CE87EFB was dropped since the applicable IP address ranges in scope/superscope GuestWireless-176 are out of available IP addresses
Two questions:
Once Domain Controller 3 rejects the DHCP request since it is out of addresses, will this request be fulfilled by one of my other two domain controllers?
Is there any way to even out the leases on these DHCP servers? Not sure the mechanism behind a client choosing one DHCP server over another

1 yes, the dhcp server who's scope is full will not do a dhcp
'offer'
2 dhcp that answers fastest with a 'offer' will win. A delay is configurable (but changes nothing
about the root scenario were the fastest will win)
Note that if the scopes overlap on the servers, they might not lease out all the addresses in the scope.
I would enlarge the scope as you will want to fence against unavailability of one of the servers (or a network connection for that matter). you currently have more addresses leased out than any set of two of your servers can offer.
MCP/MCSA/MCTS/MCITP

DHCP lease issue for PPPoA sessions when using external DHCP server

We used to use the Cisco 7206VXR's DHCP server to hand out leases, and when we lost several hundred customers on a link, the router was able to get them up and connected with an IP address within minutes.
We switched over to using an external DHCP server so we could have more control over some extended DHCP options, as well as to aggregate all our DHCP traffic. Now, if we lose 100 DSL customers all at once, it takes 90 minutes for them to come up again. They come in a few at at time, until all 100 are back.
We see waves of RADIUS auth's in our RADIUS log (RADIUS has always been handled externally, so nothing changed there), and continuous streams of DHCP requests come in and DHCP offers go out. What seems to be happening is that a whole bunch of modems auth with RADIUS, request IP addresses, but for whatever reason, timeout when they don't all get their lease, drop the connection, and retry the whole process all over again. We purchased a dedicated DHCP server, thinking that was the bottleneck, but performance is about identical.
Here's our config:
interface Virtual-Template1
ip unnumbered Loopback11
ip helper-address a.b.c.d
peer default ip address dhcp
ppp authentication pap
ppp ipcp dns a.b.c.d e.f.g.h
ppp ipcp unique-address
My questions are:
- is there any performance issue with using an external DHCP server and PPPoA
- is there anything in our config that would cause such delays
Frank

GP:
No, the DHCP server is not across a WAN link; there is only a 10/100 switch in between the router and the DHCP server. There are no dropped packets on the interface.
I ended up opening a case with TAC about this issue. While I had the helper address configured in the template, TAC recommeneded that I specify the actual DHCP server with the command "ip dhcp-server x.x.x.x". This eliminates the DHCPBROADCAST (which I've verified). Perhaps the DHCP relay portion of the Cisco router is performed serially, instead of in parallel. By that, I mean, the next DHCPBROADCAST won't go out until there is the response for the first DHCPBROADCAST.
I'll know in a few days when we test again.
Frank

Clients Not seeing DHCP server at branch office or not accepting ip offers (NO LOG REPORTS KIND OF IN THE DARK)

Hi there i am having an issue that has popped up recently i have a DC at a branch office that is connected to the main office DC via a Persistent Demand Dial connection in RRAS. Everything was working properly according to me until i found out that the Network
Admin who manages the branch office network failed to notify me that client machines weren't getting IP addresses from the DHCP server. This server was recently installed and wasn't fully implemented till about a week ago when i configured the Demand Dial
connection in RRAS up until that point it just had a regular old VPN connection to the main office while we worked out the kinks with a few things. the things ive tried so far to get DHCP working are as followed
1.Rebooted the branch office server (MULTIPLE TIMES)
2. Uninstalled the DHCP Role and re-installed it....To my surprise 1 client managed to get a ip on its lan adapter after DHCP was re-installed but nothing else
3. Disconnected the connection between the main office DC and the Branch office DC as i figured the main office DC DHCP server might be interfering with the branch office DC DHCP Server but nothing happened
4. Unauthorized and Reauthorized the main office DHCP server and the branch office DHCP server nothing changed
5. sifted through multiple log files on both servers and found noting in fact DHCP logs are empty on both servers
6. restored backups of the DHCP servers from when they were working
7. came here cause im out of ideas and im pulling my hair out
here are the current statistics from the problem server
Start Time: 7/12/2014 2:02:10PM
Up Time: 1Hours, 18 Minutes, 41 Seconds
Discovers: 90
Offers: 90
Requests: 2
Acks: 13
Nacks: 0
Declines: 0
Releases: 0
Total Scopes: 1
Total Addresses 253
In Use 2 (0%)
Available: 251 (99%)
Id like to add that RRAS was getting IP addresses from the problem server up until the point i uninstalled the role and re-installed it
heres is a ipconfig /all from the problem server
Windows IP Configuration
Host Name . . . . . . . . . . . . : MNB-DC
Primary Dns Suffix . . . . . . . : VTEACR.LOCAL
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : VTEACR.LOCAL
PPP adapter Remote Router:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Remote Router
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.141.70.25(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 10.141.70.10
NetBIOS over Tcpip. . . . . . . . : Disabled
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet
Physical Address. . . . . . . . . : 00-16-35-AB-D3-05
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d9e:daa4:34dd:db44%10(Preferred)
IPv4 Address. . . . . . . . . . . : 10.141.80.102(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : fe80::226:5aff:feb7:5b3c%10
10.141.80.1
DNS Servers . . . . . . . . . . . : ::1
10.141.80.102
NetBIOS over Tcpip. . . . . . . . : Enabled
PPP adapter RAS (Dial In) Interface:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : RAS (Dial In) Interface
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 169.254.238.243(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Disabled
Tunnel adapter Local Area Connection* 8:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{427DF66B-3B30-40B1-B67E-B5587465C
394}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 9:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 11:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.ziricom.com
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 12:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.VTEACR.LOCAL
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 13:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{BE201060-A9B9-404A-8361-F8FFB82F5
6F6}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 14:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 15:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.VTEACR.LOCAL
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 16:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #7
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 19:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.ziricom.com
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
if anymore information is needed please let me know i have full access to everything on the network so its not a problem and i am able to remotely access the branch office DC and all computer and switches at any time of the day
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Hi,
Does this issue occur on one client or multiple?
Please check this article:
http://technet.microsoft.com/en-us/library/cc757164(v=ws.10).aspx#BKMK_5
Regards.
Vivian Wang

DHCP Server is not passing out DHCP Leases

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